JAJSHS2 August   2019 DS160PR410

ADVANCE INFORMATION for pre-production products; subject to change without notice.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      代表的なアプリケーション
  4. 4 改訂履歴
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 DC Electrical Characteristics
    6. 6.6 High Speed Electrical Characteristics
    7. 6.7 SMBUS/I2C Timing Charateristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Linear Equalization
      2. 7.3.2 DC Gain
      3. 7.3.3 Receiver Detect State Machine
    4. 7.4 Device Functional Modes
      1. 7.4.1 Active PCIe Mode
      2. 7.4.2 Active Buffer Mode
      3. 7.4.3 Standby Mode
    5. 7.5 Programming
      1. 7.5.1 Control and Configuration Interface
        1. 7.5.1.1 Pin Mode
          1. 7.5.1.1.1 Four-Level Control Inputs
        2. 7.5.1.2 SMBUS/I2C Register Control Interface
        3. 7.5.1.3 SMBus/I2C Master Mode Configuration (EEPROM Self Load)
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 PCIE x4 Lane Configuration
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 DisplayPort Application
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11デバイスおよびドキュメントのサポート
    1. 11.1 ドキュメントのサポート
      1. 11.1.1 関連資料
    2. 11.2 ドキュメントの更新通知を受け取る方法
    3. 11.3 コミュニティ・リソース
    4. 11.4 商標
    5. 11.5 静電気放電に関する注意事項
    6. 11.6 Glossary
  12. 12メカニカル、パッケージ、および注文情報

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

7.3.3 Receiver Detect State Machine

The DS160PR410 deploys an RX detect state machine that governs the RX detection cycle as defined in the PCI express specifications. At power up, after a manually triggered event through PWDN1 and PWDN2 pins (in pin mode), or writing to the relevant I2C / SMBus register, the redriver determines whether or not a valid PCI express termination is present at the far end of the link. The RX_DET pin of DS160PR410 provides additional flexibility for system designers to appropriately set the device in desired mode according to Table 2.

If all four channels of DS160PR410 is used for same PCI express link, the PRWDN1 and PWDN2 pin can be shorted and driven together.

Table 2. Receiver Detect State Machine Settings

PWDN1 and PWDN2 RXDET COMMENTS
L L0 PCI Express RX detection state machine is enabled. RX detection is asserted after 2x valid detections.
Pre Detect: Hi-Z, Post Detect: 50 Ω.
L L1 PCI Express RX detection state machine is enabled. RX detection is asserted after 3x valid detections.
Pre Detect: Hi-Z, Post Detect: 50 Ω.
L L2 (Float) PCI Express RX detection state machine is enabled. RX detection is asserted after 1x valid detection.
Pre Detect: Hi-Z, Post Detect: 50 Ω.
L L3 PCI Express RX detection state machine is disabled.
Recommended for non PCI Express interface use case where the DS160PR410 is used as buffer with equalization.
Always 50 Ω.
H X Manual reset, input is high impedance.